From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750926AbWBFLan (ORCPT ); Mon, 6 Feb 2006 06:30:43 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751089AbWBFLan (ORCPT ); Mon, 6 Feb 2006 06:30:43 -0500 Received: from ns1.suse.de ([195.135.220.2]:43752 "EHLO mx1.suse.de") by vger.kernel.org with ESMTP id S1750926AbWBFLam (ORCPT ); Mon, 6 Feb 2006 06:30:42 -0500 Date: Mon, 6 Feb 2006 12:30:46 +0100 From: Jan Blunck To: Heiko Carstens Cc: Andrew Morton , Stefan Weinhuber , Horst Hummel , Christoph Hellwig , linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/3] s390: dasd extended error reporting module. Message-ID: <20060206113046.GC5564@hasse.suse.de> References: <20060201115649.GA9361@osiris.boeblingen.de.ibm.com> <4de7f8a60602060237o5c19d796hb08c237a9b5f3c64@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <4de7f8a60602060237o5c19d796hb08c237a9b5f3c64@mail.gmail.com> User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Feb 01, Heiko Carstens wrote: > From: Stefan Weinhuber > > The DASD extended error reporting is a facility that allows to > get detailed information about certain problems in the DASD I/O. > This information can be used to implement fail-over applications > that can recover these problems. > This is a resubmit of this patch because at first submission it > didn't get included due to Christoph's ioctl changes. > Since these aren't in the -mm tree anymore this one should be > merged now. Why don't you use the sysfs for this purpose? This new character device interface seems very odd to me. Why don't you introduce new attributes to the dasd device for that purpose and make online pollable for failovers? Or use dm-netlink to report the extended errors via multipath to the user space. Regards, Jan -- Jan Blunck jblunck@suse.de SuSE LINUX AG - A Novell company Maxfeldstr. 5 +49-911-74053-608 D-90409 Nürnberg http://www.suse.de